The Acquisition Hardware System with Direct Digital Synthesis and Filtered Back-Projection Imaging in Electrical Impedance Tomography

Author

Xu, Guizhi ; Zhang, Shuai ; Wu, Huanli ; Yang, Shuo ; Geng, Duyan ; Yan, Weili ; Wang, Mingshi

Author_Institution

Province-Minist. Joint Key Lab. of Electromagn. Field & Electr. Apparatus Reliability, Hebei Univ. of Tech.

fYear

2006

Firstpage

7758

Lastpage

7761

Abstract

Electrical impedance tomography is a new imaging modality that produces images by computing electrical conductivity within the body. This paper presents a basic acquisition hardware system of electrical impedance tomography with direct digital synthesis (DDS), which is used for studying the human head electrical property. The filtered back-projection algorithm is used for image reconstruction

Keywords

bioelectric phenomena; data acquisition; electric impedance imaging; image reconstruction; medical image processing; acquisition hardware system; direct digital synthesis; electrical conductivity; electrical impedance tomography; filtered backprojection imaging; human head electrical property; image reconstruction; Conductivity; Digital filters; Hardware; Image reconstruction; Impedance; Permittivity measurement; Surface reconstruction; Synthesizers; Tomography; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the

Conference_Location

Shanghai

Print_ISBN

0-7803-8741-4

Type

conf

DOI

10.1109/IEMBS.2005.1616311

Filename

1616311